Brand Rating
Darn Tough Vermont
US sock brand knitting performance merino socks at its own Vermont mills, with an unconditional lifetime guarantee, a published 2024 sustainability report and a commitment to the Responsible Wool Standard.
58/100
Hummlan Sustainability Score
58
out of 100
Sustainability Breakdown
Our ratings are "stern but fair", based on third-party certifications and EU Taxonomy + CSRD alignment. We prioritize verifiable data over brand marketing claims. EU Taxonomy and CSRD explain the framework backbone.
Our ratings are "stern but fair", based on third-party certifications and EU Taxonomy + CSRD alignment. Hummlan does not sell products and earns nothing from recommending brands — ratings are independent. Learn more about EU Taxonomy and CSRD.